23rd April is a symbolic date for world literature. It is on this date in 1616 that Cervantes, Shakespeare and Inca Garcilaso de la Vega all died. It is also the date of birth or death of other prominent authors. This is why UNESCO, in a conference held in Paris in 1995, decided to celebrate the World Book Day every 23rd of April. They wanted to encourage people, and specially children, to read and discover the authors who contributed to social and cultural progress of humanity.